1. A segment cut core machine for producing continuous honeycomb core from a plurality of sheets of paper stock, the core machine comprising:
means for bonding together the sheets of paper stock to form a continuous sheet of laminated core stock by applying a first plurality of adhesive lines between opposite faces of the sheets of paper stock extending longitudinally of the sheets of paper stock and spaced transversely across the sheets of paper stock and by applying a second plurality of adhesive lines on one of the outside faces of the sheet of core stock;
core cut means for cutting the sheet of core stock into successive strips of core stock and for pressing the strips of core stock together atop one another so that the second plurality of adhesive lines bonds the strips of core stock together to form the continuous honeycomb core;
paper feed means spaced from the core cut means for continuously feeding the sheet of core stock into the core cut means; and
take-up means extending between the core cut means and paper feed means for supporting the sheet of core stock atop thereof as the sheet of core stock travels from the paper feed to the core cut means,
the core cut means includes a reciprocating shear for transversely cutting the sheet of core stock into the strips of core stock in a cyclic operation, such that the sheet of core stock being continuously fed from the paper feed means intermittently accumulates in a gather rising atop the take-up means whereby the gather has a waveform with an amplitude and a wave length,
the take-up means includes a deck upon which the sheet of core stock travels between the paper feed means and the core cut means, means for applying force to the gather to advance the sheet of core stock in the core cut means,
a cross member mounted to the deck, and a gate shiftably mounted to the deck for horizontal movement between selectable positions along the length of deck, the cross member and gate also extending transversely over the sheet of core stock traveling upon the deck and being spaced apart from each other so that the gather rises up from the deck between the cross member and gate, the cross member and the gate constituting means for selectively adjusting the gather to alter the gather wave form.
2. The core machine of claim 1 wherein the force applying means includes a length of cord trained between the cross member and the gate and a spring for tensioning the length of cord, the cord overlying the sheet of core stock between the cross member and the gate so as to contact the gather when the gather rises up from the deck.
3. The core machine of claim 1 wherein the shear includes a first blade for transversely cutting in opposites directions the sheet of core stock into strips of core stock.
4. The core machine of claim 3 wherein the first blade includes a flat elongated first blade section and a flat elongated second blade section, each of the first blade section and the second blade section has an angled cutting face, the first blade section and the second blade section connected end to end so that the cutting face of the first blade section and the cutting face of the second blade section diverge together at the center of the first blade.
5. The core machine of claim 3 wherein the core cut means includes a flat table, a carriage suspended above the table, means for reciprocating the carriage toward and away from the table,
the shear also includes a second blade positioned for slidable reciprocal movement past the first blade, one of the first blade and second blade mounted to the table and the other of the first blade and the second blade mounted to the carriage so that reciprocating the carriage moves the second blade past the first blade in a cutting relationship.
6. The core machine of claim 1 wherein core cut means also includes means for selectively adjusting the width of the strips of core stock cut from the sheet of core stock by the shear.
7. A segment cut core machine for producing continuous honeycomb core from a plurality of sheets of paper stock, the core machine comprising:
means for bonding together the sheets of paper stock to form a continuous sheet of laminated core stock by applying a first plurality of adhesive lines between opposite faces of the sheets of paper stock extending longitudinally of the sheets of paper stock and spaced transversely across the sheets of paper stock and by applying a second plurality of adhesive lines on one of the outside faces of the sheet of core stock;
core cut means for cutting the sheet of core stock into successive strips of core stock and for pressing the strips of core stock together atop one another so that the second plurality of adhesive lines bonds the strips of core stock together to form the continuous honeycomb core;
paper feed means spaced from the core cut means for continuously feeding the sheet of core stock into the core cut means; and
take-up means extending between the core cut means and paper feed means for supporting the sheet of core stock atop thereof as the sheet of core stock travels from the paper feed to the core cut means,
the core cut means includes a reciprocating shear for transversely cutting the sheet of core stock into the strips of core stock in a cyclic operation, such that the sheet of core stock being continuously fed from the paper feed means intermittently accumulates in a gather rising atop the take-up means whereby the gather has a waveform with an amplitude and a wave length,
the shear includes a first blade for transversely cutting in opposites directions the sheet of core stock into strips of core stock, the first blade includes a flat elongated first blade section and a flat elongated second blade section, each of the first blade section and the second blade section has an angled cutting face, the first blade section and the second blade section are connected end to end so that the cutting face of the first blade section and the culling face of the second blade section diverge together at the center of the first blade.
8. The core machine of claim 7 wherein the take-up means includes a deck upon which the sheet of core stock travels between the paper feed means and core cut means, means for applying force to the gather to advance the sheet of core stock in the core cut means, a cross member mounted to the deck, and a gate shiftably mounted to the deck for horizontal movement between selectable positions along the length of deck, the cross member and gate also extending transversely over the sheet of core stock traveling upon the deck and being spaced apart from each other so that the gather rises up from the deck between the cross member and gate, the cross member and the gate constituting means for selectively adjusting the gather to alter the gather wave form.
9. The core machine of claim 8 wherein the force applying means includes a length of cord trained between the cross member and the gate and a spring for tensioning the length of cord, the cord overlying the sheet of core stock between the cross member and the gate so as to contact the gather when the gather rises up from the deck.
10. The core machine of claim 7 wherein the core cut means includes a flat table, a carriage suspended above the table, means for reciprocating the carriage toward and away from the table,
the shear also includes a second blade positioned for slidable reciprocal movement past the first blade, one of the first blade and second blade mounted to the table and the other of the first blade and the second blade mounted to the carriage so that reciprocating the carriage moves the second blade past the first blade in a cutting relationship.
11. The core machine of claim 7 wherein core cut means also includes means for selectively adjusting the width of the strips of core stock cut from the sheet of core stock by the shear.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
I claim:
1. A windsurfing catamaran, further comprising:
a central deck assembly;
at least a first and second hull, the first hull and the second hull substantially parallel to one another and separated by the central deck assembly;
an unstayed mast assembly attached to the central deck assembly between the two hulls; and
a central keel attached to the unstayed mast assembly and extending in a downward direction from the unstayed mast assembly, the central keel cooperatively connected to the unstayed mast assembly such that it moves with movement of the unstayed mast assembly;
whereby the unstayed mast assembly and the keel move in cooperation with one another.
2. A windsurfing catamaran, as in claim 1, further comprising:
one or more wings attached to the unstayed mast assembly, the wings secured to the unstayed mast assembly such that they provide thrust under pressure of wind to move the catamaran; and the unstayed mast assembly further having means to tilt independently of the hulls in response to pressure from the wings, such that the hulls position is substantially independent of changes in orientation of the mast assembly;
whereby the hulls were not pulled from the water when the wings are moved by wind pressure.
3. A windsurfing catamaran, as in claim 3, further comprising:
counter rotation means, the counter rotation means movably attaching the central keel to the unstayed mast assembly such that when the unstayed mast assembly is rotated under wind pressure away from a central position toward one side of the catamaran, the central keel is rotated toward the other side of the catamaran such that the flat side surface of the central keel is moved into the path of oncoming water flow, the oncoming water flow applies pressure against the central keel to move it back toward the central position;
whereby pressure from oncoming water flow is applied to the central keel to move it back toward a central position, and the central keel applies pressure to the unstayed mast assembly to simultaneously move it back to the central position.
4. A windsurfing catamaran, as in claim 3, wherein:
the central deck assembly is pivotably attached on its starboard side to the first hull and pivotably attached on its port side to the second hull;
a first shock absorbing means attached between the first hull and the starboard side of the central deck assembly, and a second shock absorbing means attached between the second hull and the port side of the central deck assembly;
the first shock absorbing means providing force against the first hull such that pressure is applied to the first hull to maintain its best position in response to changes in the water surface caused by waves to stabilize the wing, mast, keel and central deck assembly, and the second shock absorbing means providing force against the second hull such that pressure is applied to the second hull to maintain its best position in response to changes in the water surface caused by waves to stabilize the wing, mast, keel and central deck assembly;
whereby the first and second shock absorbing means provide independent control over the position of the first and second hulls, respectively, to stabilize the wing, mast, keel and deck assembly.
5. A windsurfing catamaran, as in claim 4, further comprising:
the first shock absorbing means includes a shock absorber and a stabilizer strut; and
the second shock absorbing means includes a shock absorber and a stabilizer strut.
6. A windsurfing catamaran, as in claim 3, wherein the central mast assembly further comprises:
a central spar attached substantially along its longitudinal length to the wings, and attached at one end to the distal end of a mast support bar via an elevational pivot point, the central spar further having a rotational pivot point to allow the spar to rotate in response to shifts in wind pressure applied by the wings;
the mast support bar further being pivotably attached to the central deck assembly such that rotation of its distal end in one direction will cause its proximal end to rotate in the same direction;
a mast, the mast slidably attached at its upper end to the center spar such that the central spar can rotate under wind pressure applied via the wings, the mast attached at its lower end to the central keel, and the mast further having a mast aperture through which the mast support bar is slidably inserted and retained;
whereby the central spar can slidably rotate in relation to the mast and the mast can slidably and rotationally move in a forward and backward direction along a portion of the mast support bar.
7. A windsurfing catamaran, as in claim 6, wherein:
the central deck assembly is pivotably attached on its starboard side to the first hull and pivotably attached on its port side to the second hull;
a first shock absorbing means attached between the first hull and the starboard side of the central deck assembly, and a second shock absorbing means attached between the second hull and the port side of the central deck assembly;
the first shock absorbing means providing force against the first hull such that pressure is applied to the first hull to maintain its best position in response to changes in the water surface caused by waves to stabilize the wing, mast, keel and central deck assembly, and the second shock absorbing means providing force against the second hull such that pressure is applied to the second hull to maintain its best position in response to changes in the water surface caused by waves to stabilize the wing, mast, keel and central deck assembly;
whereby the first and second shock absorbing means provide independent control over the position of the first and second hulls, respectively, to stabilize the wing, mast, keel and central deck assembly.
8. A windsurfing catamaran, further comprising:
a central deck assembly;
at least a first and second hull, the first hull and the second hull substantially parallel to one another and separated by the central deck assembly;
the central deck assembly pivotably attached on its starboard side to the first hull and pivotably attached on its port side to the second hull;
a first shock absorbing means attached between the first hull and the starboard side of the central deck assembly, and a second shock absorbing means attached between the second hull and the port side of the central deck assembly; and
the first shock absorbing means providing force against the first hull such that pressure is applied to the first hull to maintain its best position in response to changes in the water surface caused by waves to stabilize the wing, mast, keel and central deck assembly, and the second shock absorbing means providing force against the second hull such that pressure is applied to the second hull to maintain its best position in response to changes in the water surface caused by waves to stabilize the wing, mast, keel and central deck assembly;
whereby the first and second shock absorbing means provide independent control over the position of the first and second hulls, respectively, to stabilize the wing, mast, keel and central deck assembly.
9. A windsurfing catamaran, as in claim 8, further comprising:
an unstayed mast assembly attached to the central deck assembly between the two hulls; and
a central keel attached to the unstayed mast assembly and extending in a downward direction from the unstayed mast assembly, the central keel cooperatively connected to the unstayed mast assembly such that it moves with movement of the unstayed mast assembly;
whereby the hulls were not pulled from the water when the wings are moved by wind pressure.
10. A windsurfing catamaran, as in claim 9, further comprising:
counter rotation means, the counter rotation means movably attaching the central keel to the unstayed mast assembly such that when the unstayed mast assembly is rotated under wind pressure away from a central position toward one side of the catamaran, the central keel is rotated toward the other side of the catamaran such that the flat side surface of the central keel is moved into the path of oncoming water flow, the oncoming water flow applies pressure against the central keel to move it back toward the central position;
whereby pressure from oncoming water flow is applied to the central keel to move it back toward a central position, and the central keel applies pressure to the unstayed mast assembly to simultaneously move it back to the central position.
11. A windsurfing catamaran, as in claim 10, wherein the unstayed mast assembly further comprises:
a central spar attached substantially along its longitudinal length to the wings, and attached at one end to the distal end of a mast support bar via an elevational pivot point, the central spar further having a rotational pivot point to allow the spar to rotate in response to shifts in wind pressure applied by the wings;
the mast support bar further being pivotably attached to the central deck assembly such that rotation of its distal end in one direction will cause its proximal end to rotate in the same direction;
a mast, the mast slidably attached at its upper end to the central spar such that the central spar can rotate under wind pressure applied via the wings, the mast attached at its lower end to the central keel, and the mast further having a mast aperture through which the mast support bar is slidably inserted and retained;
whereby the central spar can slidably rotate in relation to the mast and the mast can slidably and rotationally move in a forward and backward direction along a portion of the mast support bar.
12. A windsurfing catamaran, as in claim 12, further comprising:
the first shock absorbing means includes a shock absorber and a stabilizer strut; and
the second shock absorbing means includes a shock absorber and a stabilizer strut.
13. The method of stabilizing a windsurfing catamaran, including the steps of:
attaching an unstayed mast assembly to a windsurfing catamaran having at least two hulls such that changes in wind direction andor wind speed will move the mast assembly away from a central position in relation to the catamaran hulls;
using a central keel which is attached to the mast assembly such that when the mast assembly is moved away from the central position, the central keel is rotated such that it is moved into water flow under the catamaran and pressure from the water flow pushes the keel and the central mast assembly back toward the central position;
whereby movement of the mast assembly away from a stable central position by wind pressure is at least partially counter balanced by water pressure applied against the movable central keel which moves in the opposite direction of the central mast assembly.
14. A method, as in claim 13, including the additional steps of:
controlling movement of the central keel in relation to the unstayed mast assembly by attaching the central keel to the mast such that the mast is slidably and rotationally attached to a mast support bar to provide lateral pivoting, and attaching the mast support bar to a central deck assembly such that the mast and keel move rotationally about a central pivot point such that when the unstayed mast assembly moves to one side of the catamaran, the keel moves to the opposite side of the catamaran; and
the central keel, when rotated from the central position under wind pressure applied to the unstayed mast assembly, is moved under pressure from water flowing under the windsurfing catamaran back toward the central position;
whereby the central keel is rotated in relation to the central mast assembly such that when the central mast assembly is moved away from the direction of movement of the catamaran, water pressure under the catamaran forces the keel and the central mast assembly back towards a central position.
15. A method, as in claim 14, including the additional steps of:
pivotably attaching a central deck assembly to opposing hulls on the windsurfing catamaran such that each of the hulls can pivotably move in relation to the central deck;
attaching the wings to a central spar substantially along the longitudinal length of the central spar such that movement of the wings will be directly translated to the central spar;
rotatably attaching the central spar to a pivot point such that the wings can rotate in relation to the pivot point;
attaching a mast support bar to the pivot point and further attaching the mast support bar to a rotational pivot point to allow the mast support bar and the central spar to rotate in relation to the hulls in response to shifts in wind pressure applied by the wings;
whereby wind changes will cause the central spar to slidably rotate in relation to the hulls and rotationally move the keel into the flow of oncoming water.
16. A method, as in claim 15, including the additional step of:
using shock absorbing means to attach a point on each of the hulls to a corresponding point on the central deck assembly such that, when the hulls move in relation to the deck assembly, the shock absorbing means will move the hulls independently to the best position in relation to water flowing under the windsurfing catamaran to stabilize the central deck assembly;
whereby the position of each hull in regard to the surface of the water and deck assembly is independently maintained by the shock absorbing means.
17. A method, as in claim 16, including the additional step of:
using a combination of shock absorbers and struts to form the shock absorbing means.
18. A method, as in claim 13, including the additional step of:
using shock absorbing means to attach a point on each of the hulls to a corresponding point on the central deck assembly such that, when the hulls move in relation to the central deck assembly, the shock absorbing means will move the hulls to the best position in relation to water flowing under the windsurfing catamaran and the wing, mast, keel and deck assembly remain stable;
whereby the position of each hull in regard to the surface of the water is independently maintained by the shock absorbing means to the deck assembly.
19. A method, as in claim 18, including the additional step of:
using a combination of shock absorbers and struts to form the shock absorbing means of stabilizing the wing, mast keel and deck assembly.
20. A method, as in claim 13, including the additional steps of:
pivotably attaching the mast to a mast support bar such that the mast can rotate laterally about the mast support bar;
pivotably attaching the mast support bar to the central deck assembly such that the mast support bar rotates in relation to the central deck;
whereby the mast can rotate in three dimensions about the pivot point connecting the mast support bar to the central deck assembly.